Frequency response enhancements for electro-dynamic...

Details Frequency response enhancements for electro-dynamic... Frequency response enhancements for electro-dynamic...

2006-04-25

2006-04-25

Tran, Sinh (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S421000

Reexamination Certificate

active

07035425

ABSTRACT:
In an electro-dynamic loudspeaker, vent holes are optimized to provide improved the magnetic flux characteristics while maintaining sufficient ventilation. In addition, ported and unported enclosures may be utilized with the electro-dynamic loudspeakers to enhance low frequency performance.

REFERENCES:
patent: 1643791 (1927-09-01), Slepian
patent: 3141071 (1964-07-01), Rich
patent: 3164686 (1965-01-01), Tibbetts
patent: 3570626 (1971-03-01), Mochida et al.
patent: 3654403 (1972-04-01), Bobb
patent: 3674946 (1972-07-01), Winey
patent: 3919499 (1975-11-01), Winey
patent: 4037061 (1977-07-01), von Recklinghausen
patent: 4210786 (1980-07-01), Winey
patent: 4264789 (1981-04-01), Kaizu et al.
patent: 4281223 (1981-07-01), Ugaji et al.
patent: 4316062 (1982-02-01), Beveridge
patent: 4384173 (1983-05-01), Briefer et al.
patent: 4468530 (1984-08-01), Torgeson
patent: 4471172 (1984-09-01), Winey
patent: 4471173 (1984-09-01), Winey
patent: 4480155 (1984-10-01), Winey
patent: 4484037 (1984-11-01), Nieuwendijk et al.
patent: 4536623 (1985-08-01), Larson
patent: 4544805 (1985-10-01), Sawafuji et al.
patent: 4584439 (1986-04-01), Paddock
patent: 4653103 (1987-03-01), Mori et al.
patent: 4703510 (1987-10-01), Larson
patent: 4723296 (1988-02-01), Nieuwendijk et al.
patent: 4750257 (1988-06-01), Larson
patent: 4803733 (1989-02-01), Carver et al.
patent: 4837838 (1989-06-01), Thigpen et al.
patent: 4924504 (1990-05-01), Burton
patent: 4939784 (1990-07-01), Bruney
patent: 5021613 (1991-06-01), Garcia
patent: 5148493 (1992-09-01), Bruney
patent: 5195143 (1993-03-01), Spiegel
patent: 5283836 (1994-02-01), Trufitt
patent: 5297214 (1994-03-01), Bruney
patent: 5430805 (1995-07-01), Stevenson et al.
patent: 5627903 (1997-05-01), Porrazzo et al.
patent: 5764595 (1998-06-01), Power
patent: 5850461 (1998-12-01), Zelinka
patent: 5901235 (1999-05-01), Thigpen et al.
patent: 5905805 (1999-05-01), Hansen
patent: 5953438 (1999-09-01), Stevenson et al.
patent: 5961762 (1999-10-01), Zelinka et al.
patent: 6008714 (1999-12-01), Okuda et al.
patent: 6097830 (2000-08-01), Zelinka et al.
patent: 6104825 (2000-08-01), Thigpen
patent: 6154557 (2000-11-01), Montour et al.
patent: 6185310 (2001-02-01), Kermani et al.
patent: 6546106 (2003-04-01), Azima
patent: 6593847 (2003-07-01), Miyazaki et al.
patent: 6845166 (2005-01-01), Hara et al.
patent: 2001/0005419 (2001-06-01), Kermani et al.
patent: 2001/0009586 (2001-07-01), Suzuki
patent: 2001/0048256 (2001-12-01), Miyazaki et al.
patent: 2002/0191808 (2002-12-01), Croft III, et al.
patent: 2 765 767 (1999-01-01), None
“Dynamic Amplitude Shading of Electronically Steered Line Source Arrays,” an Audio Engineering Society Preprint 3272; Richard Schmidmaier, Munchen, Germany; David G. Meyer, School of Electrical Engineering, Purdue University, West Lafayette, Indiana.
“Line Arrays: Theory and Applications,” Audio Engineering Society, Convention Paper 5304; Mark S. Ureda, JBL Professional, Northridge, CA; presented at the 110th Convention May 12-15, 2001, Amsterdam, The Netherlands.
EDM Charmilles; A Practical Guide to Electro-Discharge Machining; Atellers des Charmilles S.A. (p. 12-13).
Furihata et al., “Acoustic characteristics of an electrodynamic planar digital loudspeaker.” J. Acoustical Society of America 114(1):174-184, Jul. 2003.
“Analysis of Loudspeaker Line Arrays” by Mark S. Ureda, J. Audio Eng. Soc., vol. 52 No. 5 . . . May 2004.

Affiliated with

Also associated with

Rating

Frequency response enhancements for electro-dynamic... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency response enhancements for electro-dynamic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency response enhancements for electro-dynamic... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3605534